<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>

<body>
<button onclick="myFunction()">点我</button>
<p id="demo"></p>
<script>
var fruits=["Banana","Orange","Apple","Mango"];
document.getElementById("demo").innerHTML=fruits;

function myFunction(){
fruits.sort();
document.getElementById("demo").innerHTML=fruits;
}
</script>
</body>
</html>
